摘要
提出考虑热能输运动态特性的电-热综合能源系统(integrated energy systems,IES)优化调度方法。首先针对热网的延时和储热等动态特性,提出一种热能输运准动态模型,分析了热网的虚拟储能潜力;进而结合能源设备模型,提出一种考虑热能输运动态特性的电-热IES优化调度方法,将热网作为调度资源参与到电-热IES优化运行中,实现对热网虚拟储能的调度利用。仿真结果表明,该方法由于考虑了热能传输动态特性,可充分发掘热网虚拟储能在分时电价的激励下,参与电-热IES经济优化运行的调节潜力,有效利用电、热系统的互补特性,降低IES运行成本。
An optimal scheduling method for integrated electro-thermal energy system considering heat transmission dynamic characteristics is proposed in this paper.Firstly,a quasi-dynamic model of heat transmission is proposed based on dynamic characteristics of heating network such as time delay and heat storage.The virtual storage potential of heating network is analyzed.Then,combined with energy equipment model,an optimal scheduling method considering heat transmission dynamic characteristics is proposed.The heating network is used as scheduling resource to participate in the optimal scheduling of integrated electro-thermal energy system.Scheduling of the virtual storage of heating network is thus achieved.Numerical studies demonstrate that the model considering heat transmission dynamic characteristics is able to reduce operational cost of integrated energy system by making use of the virtual storage inspired by time-of-use electricity prices as well as taking advantage of the complementarity between electrical and thermal power flow.
作者
王明军
穆云飞
孟宪君
贾宏杰
王旭东
霍现旭
WANG Mingjun;MU Yunfei;MENG Xianjun;JIA Hongjie;WANG Xudong;HUO Xianxu(Key Laboratory of Smart Grid of Ministry of Education(Tianjin University),Nankai District,Tianjin 300072,China;Electric Power Research Institute,State Grid Tianjin Electric Power Company,Xiqing District,Tianjin 300384,China)
出处
《电网技术》
EI
CSCD
北大核心
2020年第1期132-140,共9页
Power System Technology
基金
国家自然科学基金资助项目(U1766210,51677124)
国家电网公司科技项目(蓄热式电采暖优化配置及互动关键技术研究与应用(SGTJDK00DWJS1900101))
天津市科技计划资助项目(18YFZCGX00570)~~
关键词
综合能源系统
热能输运
准动态模型
虚拟储能
优化调度
integrated energy system
heat transmission
quasi-dynamic model
virtual storage
optimal scheduling